Improvement in machine- for makihg cop-tttbes



H. & J. DOUGLAS: Making Cop Tubes. No.. 95,670- Patented Oct.- 12, 1869.

waited HENRY- DOUGLAS AND JAMES a 'LA Letters Patent No. 95,670, dated October 1.2, 1869..

IMPROVEMENT IN mscmwe ron MAKING cor-runes.

The Schedule refefre-so in these Letters Patent and making part of'the same.

To all whom it may concern DOUGLAS, of Glasgow, in Scotland, have invented a new and improved Machine for Making Cop-Tubes;

and 'we (lo-hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference 'being bad to the accompanying drawings, forming 'part of this. specification.

This invention relates .to new and useful, improve ments in machinery for'making cop-tubes,whereby it is designed to provide more eifioien't machines than those now in use. r

The invention consists in an arrangement of form ipg-rollers, a forming-mandrel, and a finishing-brush,

as hereinafter specified. s

Figure 1 represents a longitudinal sectionaL elevahonor our improved machine, and m Figure 2 represents a plan view of the same. Similar letters of reference indicate corresponding parts.

The strips of paper to be formed into tubes are first wound upon reels,-,whieh are 'so'arranged relaetively-to the machine which is the subject of this ap- ,plication, that the said strips may be passed over a paste or dressing-roller, and'under the bending-roller A, placed in suitable bearings, B, at the front ends of the housings O,which also support the other workns- This rollerJA isprovided with two guiding-collars,

1)," between which it is shaped inthe form of two coilrgs, withtheir bases joining centrally between the co m v 1 By this 'Qform, the paper strips, which are drawn under the said roller with considerable tension, are bent downward, at the centre, to some extent, which is the first step in the forming-operation.

,From this roller, the paper strip passes to a pair of rollers E 1:, which starrda little to one side of the I centre of the roller A, the object of which is to'provide for "forming the lap properly,'as will hereafter apear.

The roller E, which is at tlie'bottour, is grooved,

l and the -roller F, which is larger than the roller E,

has a convex face working into the groove of the said roller E, bending the strip therein, and further bending it into form, producing the curvature 'for one side of the required tube.

. From these rollers, the strip passes into the groove of another roller G, similar in size and shape to the.-

roller E In the groove of this roller, a horizontal forming: mandrel, H, is arranged, 'being suspended adiustably from a bracket, K, by a vertical extension, I. a

- J This former has the form and size required for the Be it known that we, Hnsmz DOUGLAS and J Aims;

)ioterior of the required tubes.

Be'ond'the roller G, a pair of liorizontally-revolvingQr-pbyed rollers L M are arranged, to further bend the flaps idle strip, which now stand nearly vertical over the r ndrel.

the flap down close upon the n'nurdrel, while the upper flange of. the other roller, M, for -the wider flap, stands considerably above the mandrel, and projects possible.

From these rollers, the strip passes into a pair of vertically-revolving grooved rollers N 0, which roll the flaps down completely, and beyond these is aring-roller,- P, which b1ushes the upper wide flap down upon the other, completely joining them and causing the paste to permanently unite the edges at any places which fail to become permanently united by the action of the rollers. r

' A short distance beyond the brush, the mandrel terminates, but the tube is carried by suitable grooved carrying-rollers through a drying-oven, for drying the paste, and as it emerges from the oven, it is cut into the proper lengths, by shears-suitably arranged and operated.

These rollers are serrated or roughened in their grooves, to cause them to adhere to the tubes, to insure the regularand uniform feed through the may chine.- i

The rollers E, G, N, and O, are driven by suitable gearing, deriving motion from a crown-wheel, Q,

are revolved by the friction of the paper strips; and the horizontal rollers M L are arranged uponvertical shafts gearing'with the said main shaft.

We do-not, however, desire to limit ourselves to any particular arrangement of operating gearing.

Good results may be obtained without the useoi dispense with it.

. Having thus described our invention,

Whatwe claim as new,-and desire to secure by Letters Patent, is-.- I v g 1. The combination of the mandrel H, adjustable .frml-lI, and bracket K, as and for'the purpose set ort ing-roll Gwith a pair of folding -'rolls L M, constructed as described, and arranged respectively with noocnas or GLASGOWSCOT- The roller L, which stands on that side where the flap is narrowest, stands the lowest and slightly in ad-' venue of the other, so thatits upper flange presses over it, so as to bend the said wide flap over as far as ranged, upon an axisoblique to-the --rnandrel, a brushgearing with the driving-shaft It; the rollers A and h the initial roller A, and we propose,'in some cases, to

-2.The combination o f a mandrel H and supportreference to the narrow and'wide flaps of the tube scribed.

blank. and to operate upon each, to fold one end urine material under t-he other, in the manner de- 3. The combination,

ishing-folders L, M, N, O, and mandrel ,H, all operating together as described, of a, brushing-roller- P,

acting upon the tube at an angle, to itsline of movement, and causing the contiguous pasted faces of the flap edges to coincide and adhere at every point, as I set fort-h.

with the preliminary and fin- .The above specification of our invention signed by us, this 10tir'day of August, 1869.

HENRY DOUGLAS.

JAMES DOUGLAS.

' \Vitnesses:

R. BENTON,

Of 7 3 West NiZe'SL, Glasgow, Solicitor. ARCHIBALD PATERSON, V Of 73"West Nile St., Glasgow, 'Law Clerk; 

